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Established in 2001, Puyang Zhong Yuan Restar Petroleum Equipment Co.,Ltd, “RSD” for short, is Henan’s high-tech enterprise with intellectual property advantages and independent legal person qualification. With registered capital of RMB 50 million, the Company has two subsidiaries-Henan Restar Separation Equipment Technology Co., Ltd We are mainly specialized in R&D, production and service of various intelligent separation and control systems in oil&gas drilling,engineering environmental protection and mining industries.We always take the lead in Chinese market shares of drilling fluid shale shaker for many years. Our products have been exported more than 20 countries and always extensively praised by customers. We are Class I network supplier of Sinopec,CNPC and CNOOC and registered supplier of ONGC, OIL India,KOC. High quality and international standard products make us gain many Large-scale drilling fluids recycling systems for Saudi Aramco and Gazprom projects.

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Electrochemical Recovery of Phosphorus from Acidic Cheese ...
Electrochemical Recovery of Phosphorus from Acidic Cheese ...

KEYWORDS: precipitation, local pH, amorphous calcium phosphate, current ,density,, fertilizer, heavy metals 1. INTRODUCTION Today, dairy processing is considered the largest industrial food ,wastewater, source, especially in the European Union (E.U.).1 Among many others, cheese is one of the most popular dairy products. It was estimated that 1.04 and 0.61

Extractable Organic Components and Nutrients in Wastewater ...
Extractable Organic Components and Nutrients in Wastewater ...

Influence ,of acidic, extract on survival of E. coli ONT:H32 in ,wastewater,. As cell death cannot be monitored by the optical ,density,-based Bioscreen system, the influence ,of acidic, organic components of ,wastewater, on the growth of MM158 was monitored in 50 ml of nonsterile ,wastewater, supplemented with ,acidic, extract from 137.5 ml of ,wastewater,.

Extractable Organic Components and Nutrients in Wastewater ...
Extractable Organic Components and Nutrients in Wastewater ...

Survival of E. coli ONT:H32 in ,wastewater, supplemented with ,acidic wastewater, extract. Since the Bioscreen system monitors optical ,density, and cannot monitor the decline of organisms, the influence ,of acidic, components of ,wastewater, on survival of E. coli ONT:H32 in ,wastewater, was monitored by plate counts on LB-RNC agar (Fig. 4).

Chromium Removal from Tannery Wastewater by ...
Chromium Removal from Tannery Wastewater by ...

current ,density, and achieved 100% removal at a CD of 7.9 mA/cm2 [15]. An EC column system with a helical iron cathode wrapped around an anode rod was also evaluated for the continuous removal

Mining Wastewater | liquideffluents
Mining Wastewater | liquideffluents

17/5/2012, · Indeed the pH of ,mining wastewater, can be a huge concern for many mines, both operational and abandoned. Lottermoser (2010) gives the following classification of mine waters based on pH: Extremely ,acidic,: ph<1, extreme examples of acidities generated through sulphide oxidation and hydrolysis reactions.

Sewage Or Wastewater Treatment Process. - Tech Process
Sewage Or Wastewater Treatment Process. - Tech Process

The carriers are made of a material With a ,density, close to the ,density, of water (01gm/cm3). An example is high-,density, polyethylene (HDPE) which has a ,density, close to (0.95 gm/cm3). The carrier will be mixed in the tank by the aeration system and thus will have good contact between the substrate in the influent ,wastewater, and the biomass on the carriers.

ELECTROCATALYTIC DEGRADATION OF PHENOL IN ACIDIC AND ...
ELECTROCATALYTIC DEGRADATION OF PHENOL IN ACIDIC AND ...

The electrocatalytic degradation of low concentration of phenol (100–800 mg L −1) as a model contaminant for ,wastewater, treatment was studied on modified β-PbO 2 anode. Various affected factors such as current ,density, (7.5–30 mA cm −2 ), reaction temperature (5–60°C), pH (2–6), salinity of the electrolyte (0.5–10 g L −1 K 2 SO 4 ), and circulation rate (100–2400 mL min −1 ) were investigated.

Ammonia - Wikipedia
Ammonia - Wikipedia

Ammonia is a compound of nitrogen and hydrogen with the formula NH 3.A stable binary hydride, and the simplest pnictogen hydride, ammonia is a colourless gas with a distinct characteristic of a pungent smell. It is a common nitrogenous waste, particularly among aquatic organisms, and it contributes significantly to the nutritional needs of terrestrial organisms by serving as a precursor to ...

Virtual ChemBook
Virtual ChemBook

Density, - Liquids, Gases, Ice, Gold bar, Diet vs. Regular Coke: Organic Names - Summary and Major Functional Groups: Environmental Issues: Global Warming Acid Rain Ozone Depletion: Compounds and Bonding - Ionic / Covalent and Bonding, Pi Bond Comparison: Fossil Fuels - Natural Gas, Oil refining, Gasoline, Combustion

ELECTROCATALYTIC DEGRADATION OF PHENOL IN ACIDIC AND ...
ELECTROCATALYTIC DEGRADATION OF PHENOL IN ACIDIC AND ...

The electrocatalytic degradation of low concentration of phenol (100–800 mg L −1) as a model contaminant for ,wastewater, treatment was studied on modified β-PbO 2 anode. Various affected factors such as current ,density, (7.5–30 mA cm −2), reaction temperature (5–60°C), pH (2–6), salinity of the electrolyte (0.5–10 g L −1 K 2 SO 4), and circulation rate (100–2400 mL min −1 ...

Wastewater: Industrial Metal Finishing
Wastewater: Industrial Metal Finishing

Because pH is simply another means of referring to the hydrogen ion concentration, ,acidic, and basic solutions can be distinguished on the basis of pH values: pH < 7 ,Acidic, solution . pH = 7 Neutral solution . pH > 7 Basic solution . Neutralization of ,wastewater, that is highly ,acidic, …

Dephosphorisation of Acidic Wastewater
Dephosphorisation of Acidic Wastewater

wastewater, into the environment, its ,acidic, content needs to be neutralized. Currently lime (CaO) is mixed with the ,wastewater,, which reacts with the acids present increasing the pH to an acceptable value. The products of the reaction with lime are clean water and solid particles.

Soil Physical and Chemical Properties | NRCS New Jersey
Soil Physical and Chemical Properties | NRCS New Jersey

30/1/2014, · Bulk ,density, is an indicator of the amount of pore space available within individual ,soil, horizons, as it is inversely proportional to pore space: Pore space = 1 – bulk ,density,/particle ,density,. For example, at a bulk ,density, of 1.60 g/cc, pore space equals 0.40 or 40%. At a bulk ,density, of 1.06 g/cc, pore space equals 0.60 or 60%.

The pH effect on the detection of heavy metals in ...
The pH effect on the detection of heavy metals in ...

Abstract. Heavy metal particles in water are mainly derived from ,acidic, industrial ,wastewater, and seriously endanger the environment and public health. In this work, the pH effect on the detection of toxic metals in ,wastewater, by laser-induced breakdown spectroscopy coupled with a phase transformation method (LIBS-PT) was investigated.

Chromium Removal from Tannery Wastewater by ...
Chromium Removal from Tannery Wastewater by ...

current ,density, and achieved 100% removal at a CD of 7.9 mA/cm2 [15]. An EC column system with a helical iron cathode wrapped around an anode rod was also evaluated for the continuous removal

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